作业帮when 和 whileWe didn’t want to be hungry （while） we were out.（When） we went out,we took a guidebook with us.括号里的两个词可以互换吗?
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when 和 whileWe didn’t want to be hungry （while） we were out.（When） we went out,we took a guidebook with us.括号里的两个词可以互换吗?
when 和 while
We didn’t want to be hungry （while） we were out.
（When） we went out,we took a guidebook with us.
括号里的两个词可以互换吗?
when 和 whileWe didn’t want to be hungry （while） we were out.（When） we went out,we took a guidebook with us.括号里的两个词可以互换吗?
嗯,一般不能.
when 是在一个时间段,while是一个时间段点.也就是说while是包含在when里面的.用while的地方可以用when,用when的地方不一定能用while.
不可以
when 是在一个时间点
while是一个时间段